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68Ga-NODAGA-Indole: An Allysine-Reactive Positron Emission Tomography Probe for Molecular Imaging of Pulmonary Fibrogenesis.


ABSTRACT: Oxidized collagen, wherein lysine residues are converted to the aldehyde allysine, is a universal feature of fibrogenesis, i.e. actively progressive fibrosis. Here we report the small molecule, allysine-binding positron emission tomography probe, 68Ga-NODAGA-indole, that can noninvasively detect and quantify pulmonary fibrogenesis. We demonstrate that the uptake of 68Ga-NODAGA-indole in actively fibrotic lungs is 7-fold higher than in control groups and that uptake is linearly correlated ( R2 = 0.98) with the concentration of lung allysine.

SUBMITTER: Wahsner J 

PROVIDER: S-EPMC6494104 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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<sup>68</sup>Ga-NODAGA-Indole: An Allysine-Reactive Positron Emission Tomography Probe for Molecular Imaging of Pulmonary Fibrogenesis.

Wahsner Jessica J   Désogère Pauline P   Abston Eric E   Graham-O'Regan Katherine A KA   Wang Junfeng J   Rotile Nicholas J NJ   Schirmer Markus D MD   Santos Ferreira Diêgo Dos DD   Sui Jingyi J   Fuchs Bryan C BC   Lanuti Michael M   Caravan Peter P  

Journal of the American Chemical Society 20190327 14


Oxidized collagen, wherein lysine residues are converted to the aldehyde allysine, is a universal feature of fibrogenesis, i.e. actively progressive fibrosis. Here we report the small molecule, allysine-binding positron emission tomography probe, <sup>68</sup>Ga-NODAGA-indole, that can noninvasively detect and quantify pulmonary fibrogenesis. We demonstrate that the uptake of <sup>68</sup>Ga-NODAGA-indole in actively fibrotic lungs is 7-fold higher than in control groups and that uptake is linea  ...[more]

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